Electric generators are usually reliable pieces of equipment, however, a large portion of the existing generating fleet is approaching or has exceeded their design life. On-line, non-invasive diagnostic solutions, such as Doble’s EMI testing services, can be very useful in helping asset owners identify issues before outages, allowing for more efficient outage planning and prioritization of needed repairs.
EMI Diagnostics is a non-invasive, on-line electromagnetic interference survey which provides a broader system view of defects, including partial discharge, and can detect a wide variety of electrical and mechanical system component problems in generators, motors, isolated phase bus, transformers, cables, switchgear and associated electrical system components.